<template>
  <div>
    <el-row type="flex" justify="end">
      <el-select v-model="currentYear" size="small" style="width: 120px" @change="dateChange">
        <el-option v-for="item in yearList" :key="item" :label="item+'年'" :value="item">{{ item }}</el-option>
      </el-select>
      <el-select v-model="currentMonth" size="small" style="width: 120px;margin-left:10px" @change="dateChange">
        <el-option v-for="item in 12" :key="item" :label="item" :value="item">{{ item }}</el-option>
      </el-select>
    </el-row>
    <el-calendar v-model="currentDate">
      <template v-slot:dateCell="{ date, data }" class="content">
        <div class="date-content">
          <span class="text"> {{ data.day | getDay }}</span>
          <!-- <span class="text"> {{ data.day }}</span> -->
          <span v-if="isWeek(date)" class="rest">休</span>
        </div>
      </template>
    </el-calendar>
  </div>
</template>

<script>
export default {
  filters: {
    getDay(value) {
      // return Number(value.split('-')[2])
      const day = value.split('-')[2]
      return day.startsWith('0') ? day.substr(1) : day
    }
  },
  // props: {
  //   startDate: {
  //     type: Date,
  //     default: () => new Date()
  //   }
  // },
  data() {
    return {
      currentMonth: null, // 当前月份
      currentYear: null, // 当前年份
      currentDate: new Date(),
      yearList: []
    }
  },
  watch: {
    currentDate() {
      this.currentYear = this.currentDate.getFullYear()
      this.currentMonth = this.currentDate.getMonth() + 1
    }
  },
  created() {
    this.currentMonth = this.currentDate.getMonth() + 1
    this.currentYear = this.currentDate.getFullYear()
    // 根据当前的年份生成前后各5年，用到Arra.from的方法,对一个类似数组或可迭代对象创建一个新的，浅拷贝的数组实例
    this.yearList = Array.from(Array(11), (value, index) => this.currentYear + index - 5)
    // this.dateChange()
  },
  methods: {
    //  改变年月
    dateChange() {
      const year = this.currentYear
      const month = this.currentMonth
      // console.log(64, year, month)
      this.currentDate = new Date(`${year}-${month}-1`)
    },
    isWeek(date) {
      return date.getDay() === 6 || date.getDay() === 0
    }
  }
}
</script>

<style lang="scss" scoped>
 ::v-deep .el-calendar-day {
  height:  auto;
 }
 ::v-deep .el-calendar-table__row td,::v-deep .el-calendar-table tr td:first-child,  ::v-deep .el-calendar-table__row td.prev{
  border:none;
 }
.date-content {
  height: 40px;
  text-align: center;
  line-height: 40px;
  font-size: 14px;
}
.date-content .rest {
  color: #fff;
  border-radius: 50%;
  background: rgb(250, 124, 77);
  width: 20px;
  height: 20px;
  line-height: 20px;
  display: inline-block;
  font-size: 12px;
  margin-left: 10px;
}
.date-content .text{
  width: 20px;
  height: 20px;
  line-height: 20px;
 display: inline-block;

}
 ::v-deep .el-calendar-table td.is-selected .text{
   background: #409eff;
   color: #fff;
   border-radius: 50%;
 }
 ::v-deep .el-calendar__header {
   display: none
 }
</style>
